Yes that is it. The HS one or even the intro+
The intro+ is dimming only and they can sometimes buzz with flexwatt and rack systems. It depends on the heat type and the tape.

The HS one is both dimming and pulse, so if dimming is buzzing you can switch to pulse. The theory is dimming is smoother and a touch more accurate. In practice I have never noticed much of a difference. I use a dimming Stat with flexwatt and never have had sound either.

Either case herpstats have the most safety features, and for the sake of a few dollars you can add likely the biggest advance in stats in 20 years, the relay.


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